[1] Throughout the book, Bartlett discusses the history of online communities and trolling, as well as the development of cryptocurrencies and internet crime.

[2] Included are his interactions with Amir Taaki, various internet trolls, a person who downloads pictures of child abuse, and neo-Nazi activists.

[4] In The Spectator, Michael Bywater wrote that the book is "necessary reading" as many users are unaware of certain communities and aspects of the internet.

[5] Andrew McMillen wrote in The Australian that the book "covers a lot of ground ... without becoming bogged down in technical minutiae".

"[3] Wendy M. Grossman of ZDNet UK stated: "Overall, though, the book's great contribution is non-sensationalist reporting about very touchy subjects.